CN211053279U - Inner wall grinding device of metal pipe - Google Patents
Inner wall grinding device of metal pipe Download PDFInfo
- Publication number
- CN211053279U CN211053279U CN201922241305.2U CN201922241305U CN211053279U CN 211053279 U CN211053279 U CN 211053279U CN 201922241305 U CN201922241305 U CN 201922241305U CN 211053279 U CN211053279 U CN 211053279U
- Authority
- CN
- China
- Prior art keywords
- polishing
- fixedly connected
- metal pipe
- wall
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The utility model discloses an inner wall grinding device of tubular metal resonator, including the base, on the one end fixedly connected with stand of base, there is the slide bar through actuating mechanism sliding connection on the stand, and the one end fixed mounting of slide bar has the subassembly of polishing, and the subassembly of polishing includes telescopic hydraulic stem and polishing block, and fixedly connected with oil pipe on the hydraulic stem, the one end of oil pipe is connected with the pressure regulating subassembly, the utility model discloses a pressure regulating subassembly can supply oil for the hydraulic stem, and the extension length of adjustable hydraulic stem output shaft like this can carry out the regulation to the radius of polishing, realizes then carrying out high-efficient polishing to the tubular metal resonator of different internal diameters, and it is convenient to adjust, and the suitability of polishing is strong; and the pressure regulating assembly is used for maintaining the pressure of the oil pressure inside the hydraulic rod in real time, so that the polishing force of the polishing head for polishing the inner wall of the metal pipe is uniform, and the quality of polishing the inner wall of the metal pipe is improved.
Description
Technical Field
The utility model relates to a metal tubular product processing technology field specifically is an inner wall grinding device of tubular metal resonator.
Background
Metal pipe includes the steel pipe, the copper pipe, multiple materials such as compound pipe, generally used in a building, the power plant, chemical plant, a plurality of fields such as daily life, be used for drainage or discharge waste, the use of metal pipe is comparatively general in the life, including seamless steel pipe, galvanized steel pipe, the welding steel pipe, the straight seam steel pipe, metal pipe such as spiral steel pipe, however the metal pipe rusts easily when storage condition is improper, consequently need polish the derusting before using, guarantee inside clean and tidy rust-free stain so that other processes of preface, to the metal pipeline of major diameter, at present mainly be that the handheld grinding device of construction worker carries out polishing to the metal pipe inner wall, the intensity of labour who causes polishing work is big and the efficiency of polishing is lower, and polish comprehensively, waste time and energy, therefore we have proposed the inner wall grinding device of a metal pipe.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an inner wall grinding device of tubular metal resonator to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an inner wall grinding device of tubular metal resonator, includes the base, two V type pieces of last side fixedly connected with of base, fixedly connected with are used for supporting the tubular metal resonator and order about two rollers of tubular metal resonator rotation between two V type pieces, on the one end fixedly connected with stand of base, there is the slide bar through actuating mechanism sliding connection on the stand, the one end fixed mounting of slide bar has the subassembly of polishing, the subassembly of polishing includes the telescopic hydraulic stem, the output shaft upper end fixedly connected with of hydraulic stem is used for polishing the piece of polishing of the intraductal lateral wall of tubular metal resonator, fixedly connected with oil pipe on the hydraulic stem, oil pipe's one end is connected with the pressure regulating assembly who is used for adjusting hydraulic stem inner chamber oil pressure, pressure regulating assembly fixed connection is on the last side.
Preferably, the driving mechanism comprises a first motor fixedly mounted on the side wall of the upright post, an output shaft of the first motor is fixedly connected with a driving wheel, the driving wheel is connected with a driven wheel in a meshed manner, the driven wheel is rotatably connected to the side wall of the upright post, and the driven wheel is sleeved on the outer side wall of the sliding rod in a meshed manner.
Preferably, the lateral wall of stand is last to open there is the through-hole, just slide bar sliding connection is in the inside of through-hole, fixedly connected with guide block on the lateral wall of through-hole, guide block sliding connection is in the inside of spout, the spout is opened on the lateral wall of slide bar.
Preferably, the pressure regulating subassembly includes the oil tank of fixed connection side on the base, the oil tank passes through oil pipe and hydraulic stem intercommunication, the upper end fixedly connected with regulating box of oil tank, just the inner chamber of regulating box and the inner chamber of oil tank communicate each other, the inside sliding connection of regulating box has the regulation pole, adjust the upper end fixedly connected with weight box of pole, the pressure regulating subassembly is still including rotating the screw rod of connection in the stand inside, the screw rod passes through second motor drive and rotates, the meshing is connected with dials the board on the screw rod, just dial the downside swing joint of board and weight box.
Preferably, any one of the roller shafts is driven to rotate by a third motor, and the third motor is fixedly connected to the upper side surface of the base.
Preferably, the upper end of the output shaft of the hydraulic rod is fixedly connected with a connecting piece, and the connecting piece is movably clamped with the polishing block.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model drives the roller shaft to rotate through the third motor, then drives the roller shaft to drive the metal pipe to rotate, and along with the rotation of the metal pipe, the polishing component can perform rotary polishing and rust removal on the inner wall of the metal pipe; meanwhile, the slide rod slides on the upright post relatively through the driving mechanism, so that the slide rod drives the polishing assembly to move along the axial direction of the metal pipe, the axial displacement of the polishing block and the metal pipe is greatly increased, the polishing efficiency is higher, and the labor intensity and time of polishing operation are saved; the arranged pressure regulating assembly can supply oil to the hydraulic rod, so that the extension length of the output shaft of the hydraulic rod can be regulated, the grinding radius can be regulated, and then metal pipes with different inner diameters can be efficiently ground, the regulation is convenient, and the grinding applicability is strong; and the pressure regulating assembly is used for maintaining the pressure of the oil pressure inside the hydraulic rod in real time, so that the polishing force of the polishing head for polishing the inner wall of the metal pipe is uniform, and the quality of polishing the inner wall of the metal pipe is improved.
Drawings
Fig. 1 is a schematic view I of the overall structure of the present invention;
fig. 2 is a schematic view II of the overall structure of the present invention;
fig. 3 is a schematic view of the overall structure of the present invention;
FIG. 4 is a cross-sectional view of the roller shaft, the metal tube, the polishing assembly and the slide rod of the present invention;
fig. 5 is a cross-sectional view of the pressure regulating assembly of the present invention;
FIG. 6 is a schematic structural view of the driving mechanism, the sliding rod, the hydraulic rod and the polishing block of the present invention;
FIG. 7 is an exploded view of the column, the slide bar, the through hole, the guide block and the sliding groove of the present invention;
FIG. 8 is an exploded view of the hydraulic rod, the sanding block, and the connector of the present invention;
FIG. 9 is a schematic structural view of the polishing block, the hydraulic rod, the oil tank and the adjusting box of the present invention;
fig. 10 is a cross-sectional view of the polishing block, the hydraulic rod, the oil tank and the adjusting box of the present invention.
In the figure: 1. the grinding machine comprises a base, 2, V-shaped blocks, 3, a roll shaft, 4, an upright post, 5, a driving mechanism, 501, a first motor, 502, a driving wheel, 503, a driven wheel, 6, a sliding rod, 7, a grinding assembly, 701, a hydraulic rod, 702, a grinding block, 8, an oil pipe, 9, a pressure regulating assembly, 901, an oil tank, 902, a regulating box, 903, a regulating rod, 904, a weight box, 905, a screw rod, 906, a second motor, 907, a shifting plate, 10, a third motor, 11, a connecting piece, 12, a through hole, 13, a guide block, 14 and a sliding groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-10, the present invention provides a technical solution: an inner wall polishing device for a metal pipe comprises a base 1, wherein two V-shaped blocks 2 are fixedly connected to the upper side surface of the base 1, two roller shafts 3 used for supporting the metal pipe and driving the metal pipe to rotate are fixedly connected between the two V-shaped blocks 2, one end of the base 1 is fixedly connected to a stand column 4, a slide rod 6 is connected to the stand column 4 in a sliding mode through a driving mechanism 5, a polishing assembly 7 is fixedly installed at one end of the slide rod 6, the polishing assembly 7 comprises a telescopic hydraulic rod 701, the polishing radius can be adjusted by adjusting the extending length of an output shaft of the hydraulic rod 701, then the metal pipes with different inner diameters can be efficiently polished, the polishing range is enlarged, the applicability is high, a polishing block 702 used for polishing the inner wall of the metal pipe is fixedly connected to the upper end of the output shaft of the hydraulic rod 701, and the polishing block 702 is a device for polishing the inner wall of the, can polish the rust of metal pipe inner wall off, make the metal pipe inner wall become smooth, fixedly connected with oil pipe 8 on the hydraulic stem 701, oil pipe 8's one end is connected with the pressure regulating subassembly 9 that is used for adjusting hydraulic stem 701 inner chamber oil pressure, pressure regulating subassembly 9 fixed connection is on the last side of base 1.
In order to greatly increase the axial displacement of the polishing block and the metal pipe and increase the polishing efficiency, specifically, the driving mechanism 5 includes a first motor 501 fixedly mounted on the sidewall of the upright post 4, an output shaft of the first motor 501 is fixedly connected with a driving wheel 502, the driving wheel 502 is engaged with a driven wheel 503, the driven wheel 503 is rotatably connected to the sidewall of the upright post 4, the driven wheel 503 is engaged and sleeved on the outer sidewall of the sliding rod 6, the first motor 501 drives the driving wheel 502 to rotate by starting the first motor 501, and then the driving wheel 502 drives the driven wheel 503 to rotate, so that the driven wheel 503 is engaged and sleeved with the sliding rod 6, the sliding rod 6 can slide, and at this time, the sliding rod 6 drives the polishing assembly 7 to slowly slide inside the metal pipe along the axial position of the metal pipe, so as to comprehensively polish the sidewall of the metal pipe, the first motor 501 can rotate in forward and reverse directions, so that the grinding assembly 7 can conveniently enter and exit.
In order to enable the sliding rod 6 to only axially slide on the upright post 4 and prevent the sliding rod 6 from rotating, specifically, a through hole 12 is formed on a side wall of the upright post 4, the sliding rod 6 is slidably connected inside the through hole 12, a guide block 13 is fixedly connected to a side wall of the through hole 12, the guide block 13 is slidably connected inside a sliding groove 14, the sliding groove 14 is formed on a side wall of the sliding rod 6, and as shown in fig. 7, when the sliding rod 6 slides, the guide block 13 relatively slides inside the sliding groove 14, so that the sliding rod 6 is prevented from rotating.
In order to realize the adjustment of the grinding radius and further realize the efficient grinding of metal pipes with different inner diameters, and the grinding force of the grinding block 702 on the inner wall of the metal pipe is uniform in the grinding process, specifically, the pressure regulating assembly 9 comprises an oil tank 901 fixedly connected to the upper side surface of the base 1, the oil tank 901 is a device for storing oil, the oil tank 901 is communicated with the hydraulic rod 701 through an oil pipe 8, the upper end of the oil tank 901 is fixedly connected with an adjusting tank 902, the inner cavity of the adjusting tank 902 is communicated with the inner cavity of the oil tank 901, the inside of the adjusting tank 902 is slidably connected with an adjusting rod 903, the upper end of the adjusting rod 903 is fixedly connected with a weight box 904, a weight block with a certain weight is added into the weight box 904, the weight box 904 can press the adjusting rod 903 downwards due to the action of gravity, so that the adjusting rod 903 presses the oil inside the oil tank 901, at the moment, the output shaft of the hydraulic rod 701 is pushed by oil to slide upwards, so that the output shaft of the hydraulic rod 701 can drive the grinding block 702 to slide upwards and finally push against the inner side wall of the metal pipe, at the moment, the counterweight inside the counterweight box 904 generates certain pressure to the oil, then the grinding block 702 has certain jacking force to the inner side wall of the metal pipe, the jacking force is changed according to different weights of the counterweight placed inside the counterweight box 904, when the gravity of the counterweight inside the counterweight box 904 is fixed, the jacking force of the grinding block 702 to the inner wall of the metal pipe is always kept unchanged, and then the grinding block 702 can grind the inner wall of the metal pipe more uniformly;
the volume of regulating box 902 is far greater than the volume of hydraulic stem 701, then can make adjusting pole 903 press fluid and make the output shaft of hydraulic stem 701 push against when sanding block 702 and the contact of metal pipe inner wall, the lower extreme gliding of adjusting pole 903 at this moment can be in the middle part (being not two terminal positions) of regulating box 902 after static and make adjusting pole 903 have the space of upper and lower range, and its effect is: when the inner wall of the metal pipe is an irregular circle, the polishing radius is changed by the change of the radius of the metal pipe, that is, the polishing block 702 receives the reaction force of the inner wall of the metal pipe and enables the output shaft of the hydraulic rod 701 to slide in the hydraulic rod 701 in a telescopic manner, if the output shaft of the hydraulic rod 701 slides towards the inside of the hydraulic rod 701, the oil pressure of oil is increased, at this time, the adjusting rod 903 slides upwards to reduce the oil pressure (the oil pressure of the oil pushes against the adjusting rod 903 to slide upwards), otherwise, if the output shaft of the hydraulic rod 701 slides towards the outside of the hydraulic rod 701, the oil pressure of the oil is reduced, at this time, the adjusting rod 903 slides downwards to increase the oil pressure (the oil pressure of the oil slides downwards through the weight of the weight box 904), and then the oil pressure of the oil is always kept at a stable value, so that the polishing force of the polishing block;
the pressure regulating assembly 9 further comprises a screw 905 rotatably connected inside the upright post 4, the screw 905 is driven to rotate by a second motor 906, the second motor 906 is fixedly connected to the side wall of the upright post 4, a dial plate 907 is engaged and connected to the screw 905, and the dial plate 907 is movably connected with the lower side surface of the weight box 904, as shown in fig. 9 and 10, when the dial plate 907 does not work, the dial plate 907 is located at a region far away from the weight box 904, when the second motor 906 is started to rotate the screw 905 and then drive the dial plate 907 to slide upwards, the dial plate 907 supports the weight box 904 to slide upwards, then the weight box 904 pulls the adjusting rod 903 to slide upwards, and then the oil inside the hydraulic rod 701 is sucked back into the oil tank 901, so that the output shaft of the hydraulic rod 701 retracts into the inside of the hydraulic rod 701, thereby disconnecting the sanding block 702 from the inner wall of the metal pipe, and the second motor 906 can rotate forwards and backwards, facilitating the up-and-down sliding of the dial 907.
Specifically, any one of the roller shafts 3 is driven to rotate by a third motor 10, the third motor 10 is fixedly connected to the upper side surface of the base 1, as shown in fig. 2 and 3, an output shaft of the third motor 10 is connected with one end of the roller shaft 3 by a synchronous belt, when the third motor 10 is started, the output shaft of the third motor 10 drives the roller shaft 3 to rotate by the synchronous belt, and at the moment, the metal pipe rotates on the two roller shafts 3; the utility model provides a first motor 501, second motor 906 and third motor 10 all are connected with the external power source electricity through the cable.
When the inner wall of the metal pipe is polished by the polishing block 702, the polishing block 702 is worn out, in order to facilitate replacement of the polishing block 702, specifically, the upper end of the output shaft of the hydraulic rod 701 is fixedly connected with a connecting piece 11, the connecting piece 11 is movably clamped with the polishing block 702, as shown in fig. 8, the coupling member 11 is fixedly coupled to the output shaft of the hydraulic rod 701 by bolts, moreover, the upper side surface of the connecting piece 11 is provided with a T-shaped slide rail, and the lower side surface of the polishing block 702 is provided with a T-shaped groove, when the polishing block 702 is disassembled and assembled, only the polishing block 702 is needed to slide to separate or connect the T-shaped slide rail and the T-shaped groove, in order to ensure that the sanding block 702 is firmly connected to the connecting member 11, bolts are further provided on the side wall of the connecting member 11, when the bolt is rotated, the bolt pushes the polishing block 702 upwards, so that the T-shaped slide rail is clamped with the side wall of the T-shaped groove, and the polishing block 702 is fixed.
The working principle is as follows: when the device is used, a metal pipe is placed on the two roller shafts 3, then the first motor 501 is started, the sliding rod 6 slides towards the inside of the metal pipe, so that the polishing component 7 moves to the inside of the metal pipe (the inner edge can), then a counterweight with a certain weight is added into the counterweight box 904, the counterweight box 904 presses the adjusting rod 903 downwards, in the process that the adjusting rod 903 moves downwards, oil in the oil tank 901 flows into the hydraulic rod 701 along the oil pipe 8 after being pressed by the adjusting rod 903, at the moment, the output shaft of the hydraulic rod 701 slides upwards under the action of the oil, so that the output shaft of the hydraulic rod 701 drives the polishing block 702 to slide upwards and finally props against the inner side wall of the metal pipe, at the moment, the polishing block 702 has a certain propping force against the inner side wall of the metal pipe, then the third motor 10 is started to drive the two roller shafts 3 to rotate with the metal pipe, so that the polishing block 702 can rotationally polish the inner wall of the metal pipe, and the sliding rod 6 with the grinding component 7 slowly slides towards the inside of the metal pipe by starting the first motor 501, so that the side wall of the metal pipe can be comprehensively ground, after the grinding is finished, the second motor 906 is started, the screw 905 rotates and then drives the shifting plate 907 to slide upwards, then the shifting plate 907 supports the weight box 904 to slide upwards, then the weight box 904 pulls the adjusting rod 903 to slide upwards, then the oil in the hydraulic rod 701 is sucked back to the inside of the oil tank 901, so that the output shaft of the hydraulic rod 701 retracts into the inside of the hydraulic rod 701, the grinding block 702 is disconnected with the inner wall of the metal pipe, then the first motor 501 is started reversely, the sliding rod 6 with the grinding component 7 moves out of the inside of the metal pipe, and the grinding work is finished.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an inner wall grinding device of tubular metal resonator, includes base (1), its characterized in that: the upper side surface of the base (1) is fixedly connected with two V-shaped blocks (2), two roll shafts (3) used for supporting the metal pipe and driving the metal pipe to rotate are fixedly connected between the two V-shaped blocks (2), one end of the base (1) is fixedly connected with an upright post (4), the upright post (4) is connected with a slide bar (6) in a sliding way through a driving mechanism (5), one end of the sliding rod (6) is fixedly provided with a grinding component (7), the grinding component (7) comprises a telescopic hydraulic rod (701), the upper end of the output shaft of the hydraulic rod (701) is fixedly connected with a polishing block (702) for polishing the inner side wall of the metal pipe, an oil pipe (8) is fixedly connected to the hydraulic rod (701), one end of the oil pipe (8) is connected with a pressure regulating component (9) for regulating the oil pressure of the inner cavity of the hydraulic rod (701), the pressure regulating assembly (9) is fixedly connected to the upper side face of the base (1).
2. The inner wall grinding device for the metal pipe as claimed in claim 1, wherein: the driving mechanism (5) comprises a first motor (501) fixedly mounted on the side wall of the upright post (4), an output shaft of the first motor (501) is fixedly connected with a driving wheel (502), the driving wheel (502) is connected with a driven wheel (503) in a meshed mode, the driven wheel (503) is rotatably connected to the side wall of the upright post (4), and the driven wheel (503) is connected to the outer side wall of the sliding rod (6) in a meshed mode in a sleeved mode.
3. The inner wall grinding device for the metal pipe as claimed in claim 1, wherein: open on the lateral wall of stand (4) has through-hole (12), just slide bar (6) sliding connection is in the inside of through-hole (12), fixedly connected with guide block (13) on the lateral wall of through-hole (12), guide block (13) sliding connection is in the inside of spout (14), spout (14) are opened on the lateral wall of slide bar (6).
4. The inner wall grinding device for the metal pipe as claimed in claim 1, wherein: the pressure regulating assembly (9) comprises an oil tank (901) fixedly connected to the upper side face of the base (1), the oil tank (901) is communicated with a hydraulic rod (701) through an oil pipe (8), the upper end of the oil tank (901) is fixedly connected with a regulating box (902), the inner cavity of the regulating box (902) is communicated with the inner cavity of the oil tank (901), the inner part of the regulating box (902) is slidably connected with a regulating rod (903), the upper end of the regulating rod (903) is fixedly connected with a counterweight box (904), the pressure regulating assembly (9) further comprises a screw rod (905) rotatably connected to the inner part of the upright column (4), the screw rod (905) is driven to rotate through a second motor (906), a shifting plate (907) is meshed and movably connected to the lower side face of the counterweight box (904).
5. The inner wall grinding device for the metal pipe as claimed in claim 1, wherein: any roller shaft (3) is driven to rotate by a third motor (10), and the third motor (10) is fixedly connected to the upper side face of the base (1).
6. The inner wall grinding device for the metal pipe as claimed in claim 1, wherein: the upper end of the output shaft of the hydraulic rod (701) is fixedly connected with a connecting piece (11), and the connecting piece (11) is movably clamped with the polishing block (702).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922241305.2U CN211053279U (en) | 2019-12-15 | 2019-12-15 | Inner wall grinding device of metal pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922241305.2U CN211053279U (en) | 2019-12-15 | 2019-12-15 | Inner wall grinding device of metal pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211053279U true CN211053279U (en) | 2020-07-21 |
Family
ID=71593142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922241305.2U Expired - Fee Related CN211053279U (en) | 2019-12-15 | 2019-12-15 | Inner wall grinding device of metal pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211053279U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112571219A (en) * | 2020-11-12 | 2021-03-30 | 扎赉诺尔煤业有限责任公司 | Guide sleeve rust removal device |
| CN114473779A (en) * | 2022-02-08 | 2022-05-13 | 泰兴高新环保设备有限公司 | Internal trimming and polishing equipment for tank body of ozone generator |
| CN115194570A (en) * | 2021-04-08 | 2022-10-18 | 福建呈祥机械制造有限公司 | Method and device for removing scabs on inner wall of bamboo tube |
-
2019
- 2019-12-15 CN CN201922241305.2U patent/CN211053279U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112571219A (en) * | 2020-11-12 | 2021-03-30 | 扎赉诺尔煤业有限责任公司 | Guide sleeve rust removal device |
| CN112571219B (en) * | 2020-11-12 | 2022-03-11 | 扎赉诺尔煤业有限责任公司 | Guide sleeve rust removal device |
| CN115194570A (en) * | 2021-04-08 | 2022-10-18 | 福建呈祥机械制造有限公司 | Method and device for removing scabs on inner wall of bamboo tube |
| CN114473779A (en) * | 2022-02-08 | 2022-05-13 | 泰兴高新环保设备有限公司 | Internal trimming and polishing equipment for tank body of ozone generator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211053279U (en) | Inner wall grinding device of metal pipe | |
| CN203945240U (en) | The inside and outside polishing mechanism of a kind of body | |
| CN210649856U (en) | Pipeline grinding device is used in construction | |
| CN110883646A (en) | Elbow surface polishing equipment manufactured in casting mode | |
| CN111266945A (en) | Processing device for seamless high-strength stainless steel pipe | |
| CN111761294A (en) | Device for automatically detecting and repairing cracks of building steel pipes | |
| CN212263648U (en) | Building materials pipeline outer wall spraying device | |
| CN115026153B (en) | High-strength steel precise leveling machine capable of reducing steel plate loss and working method thereof | |
| CN112935955A (en) | Bearing ring surface polishing equipment for bearing machining | |
| CN217290690U (en) | Pipe cutting machine convenient to material loading | |
| CN220613482U (en) | Automatic polishing rust cleaning device of tubular product | |
| CN112846994A (en) | Laser welded pipe production line for pipe machining and production method | |
| CN211305934U (en) | Polishing device | |
| CN216633868U (en) | Steel construction surface rust cleaning device that polishes | |
| CN217616844U (en) | Pipe mill capable of freely adjusting spacing between rolling cylinders for producing seamless steel pipes | |
| CN217344910U (en) | Machining grinding device | |
| CN110127408A (en) | A kind of automatic unwinding device | |
| CN215199070U (en) | High-precision multi-stage steel pipe straightening machine | |
| CN213731026U (en) | High-efficient type grinding device of metal part | |
| CN214980072U (en) | Underground pipeline rust cleaning device | |
| CN211841283U (en) | Water pipe inner wall burring device | |
| CN210650170U (en) | Steel pipe grinding device | |
| CN210046432U (en) | Full-automatic roller grinding machine of full-automatic unloading | |
| CN111571326A (en) | Processing device for seamless high-strength stainless steel pipe | |
| CN221792234U (en) | Steel pipe polishing processing fixed establishment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200721 Termination date: 20201215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |